Solving MSI B650M GAMING PLUS WIFI memory crashes in Apex
This B650M board is a joke when it comes to high-frequency RAM; I was getting random crashes every thirty minutes. The system logs were filled with memory management errors, making it clear the controller was on the edge of stability at 6000MHz. I tried enabling 'Memory Try It!' in the BIOS, but that actually made it worse, crashing every ten minutes instead of every hour, which was just depressing. I eventually dropped the frequency to 5600MHz, set the SoC voltage to a steady 1.2V, and loosened the tRFC timings. After twelve hours of Prime95 stress testing, I didn't see a single error, and the game crashes completely stopped. I did lose about 4ns of latency by downclocking, but in a real match, I can't tell the difference—stability is way more important. RAM temps are 45 - 51℃ and the VRMs are between 65 - 72℃. I used the board's export tool to save these BIOS settings so I don't have to do this again.
